Triethylamine → HCID 57807404, compound

Participants

Reaction Steps

0.30 mL (2.16 mmol) triethylamine were added to a mixture of 700 mg (1.26 mmol) (R)-2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-carboxy-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate (Example 1f), 430 mg (1.41 mmol) ethyl(S)-4-(1-methyl-piperidin-4-yl)-piperazine-2-carboxylate (Example A11b) and 450 mg (1.40 mmol) TBTU in 7 mL DMF and the reaction mixture was stirred for 18 h at RT. It was evaporated down i. vac., the residue was stirred with saturated NaHCO3 solution, extracted exhaustively with EtOAc and the combined organic phases were dried over Na2SO4. After elimination of the desiccant and solvent the residue was purified by HPLC; the fractions containing the product were combined and lyophilised.

Provenance & Evidence